Evolutionary position of Peruvian land snails (Orthalicidae) among Stylommatophora (Mollusca: Gastropoda)

Revista Peruana de Biología

Jorge Ramirez¹  Ana Chumbe¹  Rina Ramírez¹  Pedro Romero¹  Pablo Ramírez² 

[1] 1 Laboratorio de Sistemática Moleculary Filogeografía, Facultad deCiencias Biológicas, UniversidadNacional Mayor de San Marcos.2 Departamento de Malacología yCarcinología, Museo de HistoriaNatural, Universidad NacionalMayor de San Marcos. Av. Arenales 1256, Apartado 14-0434, Lima-14, Perú.;Laboratorio de MicrobiologíaMolecular, Facultad de CienciasBiológicas, Universidad NacionalMayor de San Marcos.;

关键词: ADN mitocondrial;    filogenia molecular;    Orthalicoidea;    Bostryx;    Scutalus.;   

DOI  :  10.15381/rpb.v16i1.193

来源: DOAJ

【 摘 要 】

The genera Bostryx and Scutalus (Orthalicidae: Bulimulinae) are endemics from South America. They are mainly distributed on the western slopes of the Peruvian Andes. The goal of the present work was to assess their evolutionary position among the stylommatophoran gastropods based on the 16S rRNA mitochondrial marker. Four sequences were obtained, and along with 28 sequences of other Stylommatophora retrieved from the GenBank, were aligned with ClustalX. The phylogenetic reconstruction was carried out using the methods of Neighbor-Joining, Maximum Parsimony, Maximum Likelihood and Bayesian inference. The multiple sequence alignment had 371 sites, with indels. The two genera of the family Orthalicidae for the first time included in a molecular phylogeny (Bostryx and Scutalus), formed a monophyletic group along with another member of the superfamily Orthalicoidea (Placostylus), result that is comparable with that obtained with nuclear markers. Their evolutionary relationship with other land snails is also discussed.

【 授权许可】

Unknown